LTC4440-5 High Speed, High Voltage, High Side Gate Driver Fea T Descrip T n Wide Operating V Range: Up to 60V The LTC 4440-5 is a high frequency high side N-channel IN n Rugged Architecture Tolerant of 80V V Transients MOSFET gate driver that is designed to operate in appli- IN n Powerful 1.85 Driver Pull-Down (with 6V Supply) cations with V voltages up to 60V. The LTC4440-5 can IN n Powerful 1.1A Peak Current Driver Pull-Up also withstand and continue to function during 80V V IN transients. The powerful driver capability reduces switch- (with 6V Supply) n ing losses in MOSFETs with high gate capacitances. The 7ns Fall Time Driving 1000pF Load n LTC4440-5s pull-up has a peak output current of 1.1A and 10ns Rise Time Driving 1000pF Load n its pull-down has an output impedance of 1.85. Drives Standard Threshold MOSFETs n TTL/CMOS Compatible Inputs with Hysteresis The LTC4440-5 features supply independent TTL/CMOS n Input Thresholds are Independent of Supply compatible input thresholds with 350mV of hysteresis. n Undervoltage Lockout The input logic signal is internally level-shifted to the n Low Profile (1mm) SOT-23 (ThinSOT) and bootstrapped supply, which may function at up to 95V Thermally Enhanced 8-Pin MSOP Packages above ground. The LTC4440-5 is optimized for driving (5V) logic level a T FETs and contains an undervoltage lockout circuit that disables the external MOSFET when activated. n Telecommunications Power Systems n Distributed Power Architectures The LTC4440-5 is available in the low profile (1mm) n Server Power Supplies SOT-23 or a thermally enhanced 8-lead MSOP package. n High Density Power Modules PARAMETER LTC4440-5 LTC4440A-5 LTC4440 n General Purpose Low-Side Driver Max Operating TS 60V 80V 80V L, LT, LTC, LTM, Linear Technology, the Linear logo and PolyPhase are registered trademarks Absolute Max TS 80V 100V 100V and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 6677210. MOSFET Gate Drive 4V to 15V 4V to 15V 8V to 15V + V UV 3.2V 3.2V 6.3V CC V UV 3.04V 3.04V 6.0V CC Typical a T Synchronous Phase-Modulated Full-Bridge Converter LTC4440-5 Driving a 1000pF Capacitive Load V IN 36V TO 60V V CC 4V TO 15V LTC4440-5 TG-TS 2V/DIV V BOOST CC INP TG GND TS INP LTC4440-5 2V/DIV V BOOST CC LTC3722-1 4440-5 TA02 INP TG 50ns/DIV V = BOOST-TS = 5V GND TS CC 4440 TA01 44405fb 1 For more information www.linear.com//LTC4440-5 ion pplica ions pplica ion uresLTC4440-5 a Te Maxi Mu M r a T (Note 1) Supply Voltage TS Voltage (100ms) ...................................... 5V to 80V V ........................................................ 0.3V to 15V Peak Output Current < 1s (TG) ..................................4A CC BOOST TS ........................................... 0.3V to 15V Operating Ambient Temperature Range INP Voltage ................................................ 0.3V to 15V (Note 2) ...............................................40C to 85C BOOST Voltage (Continuous) ..................... 0.3V to 85V Junction Temperature (Note 3) ............................. 125C BOOST Voltage (100ms) ............................ 0.3V to 95V Storage Temperature Range .................. 65C to 150C TS Voltage (Continuous) ............................... 5V to 70V Lead Temperature (Soldering, 10 sec) ...................300C p in c F T TOP VIEW TOP VIEW INP 1 8 TS V 1 6 BOOST CC GND 2 7 TG 9 GND 2 5 TG V 3 6 BOOST CC GND 4 5 NC INP 3 4 TS MS8E PACKAGE 8-LEAD PLASTIC MSOP S6 PACKAGE 6-LEAD PLASTIC SOT-23 T = 125C, = 40C/W JMAX JA T = 125C, = 230C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB JMAX JA o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4440EMS8E-5 PBF LTC4440EMS8E-5 TRPBF LTBRG 8-Lead Plastic MSOP 40C to 85C LTC4440ES6-5 PBF LTC4440ES6-5 TRPBF LTBRF 6-Lead Plastic SOT-23 40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: